Software: Apache/2.4.41 (Ubuntu). PHP/8.0.30 uname -a: Linux apirnd 5.4.0-204-generic #224-Ubuntu SMP Thu Dec 5 13:38:28 UTC 2024 x86_64 uid=33(www-data) gid=33(www-data) groups=33(www-data) Safe-mode: OFF (not secure) /var/www/html/queuepro/node_modules/rxjs/operators/ drwxrwxr-x | |
| Viewing file: Select action/file-type: "use strict";
var mergeMap_1 = require('./mergeMap');
/* tslint:enable:max-line-length */
/**
* Projects each source value to an Observable which is merged in the output
* Observable, in a serialized fashion waiting for each one to complete before
* merging the next.
*
* <span class="informal">Maps each value to an Observable, then flattens all of
* these inner Observables using {@link concatAll}.</span>
*
* <img src="./img/concatMap.png" width="100%">
*
* Returns an Observable that emits items based on applying a function that you
* supply to each item emitted by the source Observable, where that function
* returns an (so-called "inner") Observable. Each new inner Observable is
* concatenated with the previous inner Observable.
*
* __Warning:__ if source values arrive endlessly and faster than their
* corresponding inner Observables can complete, it will result in memory issues
* as inner Observables amass in an unbounded buffer waiting for their turn to
* be subscribed to.
*
* Note: `concatMap` is equivalent to `mergeMap` with concurrency parameter set
* to `1`.
*
* @example <caption>For each click event, tick every second from 0 to 3, with no concurrency</caption>
* var clicks = Rx.Observable.fromEvent(document, 'click');
* var result = clicks.concatMap(ev => Rx.Observable.interval(1000).take(4));
* result.subscribe(x => console.log(x));
*
* // Results in the following:
* // (results are not concurrent)
* // For every click on the "document" it will emit values 0 to 3 spaced
* // on a 1000ms interval
* // one click = 1000ms-> 0 -1000ms-> 1 -1000ms-> 2 -1000ms-> 3
*
* @see {@link concat}
* @see {@link concatAll}
* @see {@link concatMapTo}
* @see {@link exhaustMap}
* @see {@link mergeMap}
* @see {@link switchMap}
*
* @param {function(value: T, ?index: number): ObservableInput} project A function
* that, when applied to an item emitted by the source Observable, returns an
* Observable.
* @param {function(outerValue: T, innerValue: I, outerIndex: number, innerIndex: number): any} [resultSelector]
* A function to produce the value on the output Observable based on the values
* and the indices of the source (outer) emission and the inner Observable
* emission. The arguments passed to this function are:
* - `outerValue`: the value that came from the source
* - `innerValue`: the value that came from the projected Observable
* - `outerIndex`: the "index" of the value that came from the source
* - `innerIndex`: the "index" of the value from the projected Observable
* @return {Observable} An Observable that emits the result of applying the
* projection function (and the optional `resultSelector`) to each item emitted
* by the source Observable and taking values from each projected inner
* Observable sequentially.
* @method concatMap
* @owner Observable
*/
function concatMap(project, resultSelector) {
return mergeMap_1.mergeMap(project, resultSelector, 1);
}
exports.concatMap = concatMap;
//# sourceMappingURL=concatMap.js.map |
:: Command execute :: | |
--[ c99shell v. 2.5 [PHP 8 Update] [24.05.2025] | Generation time: 0.017 ]-- |